609 uppsatser · sida 4 av 41
utveckling av belastningsenkät för flygledningsarbete på mindre flygplatser.
… if it is possible to create a common factor of the work tasks done by an air traffic controller, which then can measure workload. This will lead to the development of a tool to measure workload at small airports. In the research project a questionnaire is created to measure the …
An Internet application, VEDAIR, for estimation of air quality in regions with small-scale combustion of bio fuel has been developed by Swedish Meteorological and Hydrological Institute with financing from Swedish Energy Agency and Swedish Environmental Protection Agency. The …
… The assignments were: reducing the number of CO-spikes and tuning the overfire air control loop. To reduce the number of CO-spikes the possibility that skewness in mass distribution affects the number of CO-spikes were study. The skewnwss of mass distribution was controled and …
Test bench for air bearings This thesis work consisted of bringing forward and defining the test parameters relevant for a test bench and constructing a test bench that can test and verify the largest existing air bearings that are of use in Micronic Laser Systems AB machines …
… that a retrofit liquid cooler is the way to achieve this goal. The current air cooling has high energy cost due to the high amount of power needed to power fans and heat exchangers. Using high volumes of air for cooling also leads to noise pollution. The conversion from air to …
… in order to obtain bread with good volume and appetizing characteristics. Air-classification is a technological method used to separate particles by size and shape by means of air-streams into two fractions, fine and coarse. When used on wheat flour it is known to alter the …
Gtherm is an innovation company who has an unique air heat exchanger underdevelopment. The purpose of this thesis is to provide data of suitable motors for theheat exchanger and to find suitable motor suppliers.A motor specification was designed. It is an important basis for the …
Compressed air is an energy source that is widely used in today's trucks and buses. Compressor located next to the engine supplies the pneumatic system with the compressed air and is lubricated with the engine oil. Some of the oil follows the air flow in both liquid and solid …
Cooling down the indoor air can be done in several ways. One way is desiccantcooling which will be used at the Stockholm Arena. This method is used in airhandling units that use temperature changes and moisture fluctuations in the air. Oneof the steps is to add heat during the …
En nulägesanalys utifrån samarbetet kring Close Air Support
… and combinations of combined arms. This thesis puts its focus on Close Air Support, CAS. Throughout history there have been several cases of success, regarding these kinds of operations, but also failure. Much can be taught from organizational behaviour studies, applied on these …
En jämförelse mellan CAV och VAV
… att ventilera en byggnad idag är med så kallad CAV-ventilation (Constant Air Volume). Denna metod bygger på att ett luftflöde bestäms för rummet och upprätthålls med konstant flöde. En annan metod är så kallad VAV (Variable Air Volume) som bygger på att flödet varierar efter …
… that the heat pump has a high coefficient of performance. An exhaust air heat pump extracts heat from the building’s exhaust air. The air has a relatively high and constant temperature all year around, leading to a high seasonal coefficient of performance. This thesis examines …
Parameterundersökning i simuleringsmodell för takvärmesystem
… climate. The ceiling heating system is designed as a comfort module that blows air in four directions, the module is placed in the centre of the ceiling and is heating the room with warm air. The aim of this report is to evaluate which parameters that affects the indoor climate …
… total energy consumption. The most common system used for energy recovery is air to air heat exchangers connected with the supply air and the exhaust air. For different reasons it is not possible to use this kind of system in several buildings. If that is the case there is a …
… AB has worked to launch a new product whose function is to locally purify the air. The product is a headboard and its purpose is to give the user clean air while sleeping. The air purifier has different speeds and it`s up to the user to choose which effect that will be on. To …
